So I was playing a music video on my iPhone 3G and I decided to cover the right speaker with my index finger. When I cover it, I still hear the song just as loud from the left speaker. But when I cover the left speaker, I can barely hear anything. It seems like only one of the two speakers on the bottom of the phone is working. Is this normal?? Try it on yours?!? EDIT: Many of you are saying one is speaker and one is a microphone. But if you do the same thing on the first generation iPhone, the other side still plays loudly. Why has this changed in the new generation?